1991 Ford Bronco California Smog Check Report - ASM Emission Test Pass Results

This document is a California Smog Check Vehicle Inspection Report (customer copy) showing a passing result. The header notes that the smog check certificate was electronically transmitted to the DMV and is valid for ninety (90) days from the date of issuance. The Emission Control Systems Visual Inspection/Functional Check Results section shows 'Pass' for all listed items, including air injection, vacuum lines/sensors/switches, fuel cap integrity, ignition timing (12 BTDC), fuel evaporative controls, spark controls, oxygen sensor, fuel cap visual, fuel EVAP test, catalytic converter, fuel injection, wiring to sensors, liquid fuel leak, and malfunction indicator light. The ASM Emission Test Results table lists two test modes: M1 at 15 MPH (1439 RPM, 12.8 %CO2, 2.9 %O2, HC measured 78 ppm vs 85 max, CO 0.02% vs 0.54 max, NO 751 ppm vs 807 max, Pass) and M2 at 25 MPH (1613 RPM, 12.7 %CO2, 3.0 %O2, HC 66 ppm vs 67 max, CO 0.01% vs 0.45 max, NO 701 ppm vs 746 max, Pass). The test was performed at Signature Smog Center on W. Palmdale Blvd, Palmdale, CA 93551, by technician Alrabbah, Nazieh (EO630450), station number TC257249. NO readings (highlighted) passed but were close to the maximum limits.